Velas DEXs and bridges: swap and move VLX safely

A DEX lets you swap tokens through smart contracts, without a company holding your funds. A bridge moves value between chains. Both are useful, and both are common targets for attacks.

Swapping on a DEX

1. Connect your wallet to the verified app address.
2. Choose tokens and review the price impact.
3. Set slippage low; raise only if needed.
4. Confirm, then check the transaction on the explorer.

Bridging VLX

VLX tokens exist on Velas, Ethereum and BNB Smart Chain. Bridging converts between them. Use only bridges listed on the official site or docs, test with a small amount and expect delays. See the contracts on the contract page.

Safety checklist

• Bookmark official URLs.
• Never approve unlimited allowances unless required.
• Prefer small transfers first.
• Bridges can fail or be exploited; do not keep large sums in transit.

For the wider app landscape see Velas DeFi.

How a DEX differs from an exchange you sign up to

On a centralised exchange you deposit coins, the company records your balance, and trades happen in its internal order book. On a decentralised exchange there is no deposit. You connect a wallet, and a smart contract swaps your token for another directly, usually against a pool of tokens supplied by liquidity providers. The price is set by a formula based on the size of the pool, so a large trade in a small pool moves the price noticeably. This is called price impact, and it is separate from the fee. Because liquidity on Velas is limited, price impact is the main thing to watch, particularly when swapping anything other than the most traded pairs.

Reading a swap screen

• Price impact. How much your own trade moves the price. Anything more than a small percentage deserves a smaller trade.
• Slippage tolerance. The maximum difference you accept between quoted and executed price. Too high invites sandwich attacks, too low makes the transaction fail.
• Minimum received. The least you will get if the price moves; check it matches your expectation.
• Route. Whether the swap goes through intermediate tokens, which adds fees.
• Network fee. Paid in VLX for the EVM side.

Token approvals

Before a DEX can swap a token you hold, you usually approve its contract to spend it. Many interfaces default to unlimited approval for convenience. If that contract is later compromised, the approval remains and can be used against you. Set the exact amount where the interface allows, and review and revoke old approvals periodically with a tool such as revoke.cash, which supports many EVM networks; check whether it currently lists Velas before relying on it.

How bridges work and why they are risky

A bridge usually locks tokens on one chain and creates or releases a matching representation on another. The risk lies in whoever or whatever controls the locked pool: a contract, a group of signers or a validator set. If that is compromised, the representation becomes worthless. Across the industry, bridges have been among the most frequently exploited components. For VLX, there are tokens on Ethereum and BNB Smart Chain, listed on the contract address page, and the project's documentation is the place to find routes it supports. We cannot confirm the current availability or security of every route, so check before moving anything.

A cautious bridging routine

1. Confirm the bridge URL in the official site or documentation, and bookmark it.
2. Check the source and destination networks and the token on each side.
3. Send a small test amount first and wait until it fully arrives.
4. Note the fees on both chains and any minimum amount.
5. Keep the transaction hashes until the funds are confirmed on the other side.

Sometimes an exchange is simpler than a bridge: withdrawing VLX on a supported network directly to your wallet avoids a bridge entirely. See where to buy VLX for how to check supported networks.

When things go wrong

If a swap fails, you still pay the fee. If a bridge transfer is stuck, do not retry repeatedly; contact the bridge's official support with your hash, and be wary of anyone who messages you offering help, since impersonators target stuck users. Neither this site nor any outsider can reverse a blockchain transaction.

Common mistakes when swapping and bridging

Most losses in this area come from process errors, not exotic attacks. Sending funds to the right address on the wrong network is the classic one: the address format may be valid on both sides, yet the asset ends up somewhere you cannot easily reach. Before every transfer, confirm the network name on both ends and send a small test amount first, even if the fee feels annoying.

Another trap is the swap screen itself. A token with the same name or ticker as a well-known asset may be a different contract, so compare the contract address with an official source instead of trusting the symbol. Wide slippage settings, left on after a volatile moment, allow a trade to execute at a much worse price than you expected. Set the tolerance to the lowest value that works, and if a swap fails repeatedly, stop and investigate instead of raising it.

With bridges, patience is part of the process. A transfer can take longer than the interface suggests, and refreshing or resubmitting may cause confusion. Keep the transaction hash, check both explorers, and contact the bridge operator through official channels only. Beware of people who message you first offering to recover funds; that is a well-known scam pattern. We cannot verify the security of any specific bridge, so judge each one on its own record.